This is now a very old product and I would not spend time putting loads of information in there in case you move to another product and have to move all the data.
I am sure you can find a more up to date product to do what you want. let us know what features you are using and we wil try to suggest something.
Lotus were bought by IBM, and they are still shipping Organizer, although releases are becoming less frequent.
You may find what you want here
http://www-01.ibm.com/software/lotus/products/ organizer/
btw, I found this information by doing a simple search in Google for "Lotus Organizer", which I am sure you could have done just as easily. :-)